PayPal Gateway - 2013 Podręcznik Użytkownika Pobierz pdf (Strona 153)

Gateway Developer Guide and Reference 07 February 2013 153

Submitting Purchasing Card Level 2 and 3 Transactions

About American Express Purchasing Card Transactions

Avoiding Downgrade

If a transaction uses the purchasing card BIN range (see “Accepted BIN Ranges” on page 154)

and contains a line item but does not include all mandatory Level 3 parameters, the transaction

succeeds but is processed as Level 2 or Level 1 during settlement (depending on which data

was passed).

For downgraded transactions, with the VERBOSITY parameter set to HIGH, the ADDLMSGS

field returns a message like the following:

Features not processed: PCARD L3 (missing or invalid: InvoiceNumber

RequestorName)

— or —

Features not processed: PCARD L3 (line item 3 missing: Description)

For details on VERBOSITY, see “VERBOSITY: Processor-Specific Transaction Results” on

page 215

Submitting Successful Level 3 Transactions

If a transaction uses the purchasing card BIN range, contains all mandatory Level 3 fields, and

has at least 1 line item (with all mandatory line item fields), the Gateway flags it as Level 3.

Edit Check

The Gateway performs an edit check on the transaction’s amount fields to ensure that all line

item and tax amounts balance.

If the edit check fails, the transaction fails with Result 4: Invalid Amount.

To pass the edit check, the following relationship must be true:

Transaction Amount = Total Tax Amount + Total Freight Amount + Total

Handling Amount + Total Line Item Amount.

Transaction Amount Total amount for the transaction, AMT

Total Tax Amount TAXAMT

Total Freight Amount FREIGHTAMT, or, if not present, the summation of L_FREIGHTAMT

n for all line

items

Total Handling Amount HANDLINGAMT, or, if not present, the summation of L_HANDLINGAMT

n for all

line items

Total Line Item Amount Summation of L_QTY

n * L_COSTn for all line items (n as the line item

number). For example, if there are 2 line items, then the Total Line Item

Amount would be (LQTY1*LCOST1) + (LQTY2*LCOST2)

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PayPal Gateway - 2013 Podręcznik Użytkownika Strona 153